The small-signal impedance modeling of a modular multilevel converter (MMC) is the key for
analyzing resonance and stability of MMC-based power electronic systems. The MMC is a …

This paper presents a harmonic instability analysis method using state-space modeling and
participation analysis in the inverter-fed ac power systems. A full-order state-space model for …

An increasing number of power-electronic-based distributed generation systems and loads
generate not only characteristic harmonics but also unexpected harmonics. Several …

Modern power systems face several problems at frequencies above the range of traditional
stability studies due to the increasing penetration of power electronic devices. This …

This article proposes an accurate dc-side impedance modeling method of modular
multilevel converter (MMC) and a control strategy for improving the stability of the dc system …

大量接入可再生能源和逐步采用交直流混合网络已经成为现代电力系统的两大特征,
随之而来的电网谐波问题日益突出. 在此背景下, 谐波源建模方法, 谐波溯源方法以及谐波治理 …

With the promotion of high voltage direct current system construction around the world, the
series-connected multipulse rectifiers (SCMPRs) have been widely used in high-power …

Under low-switching-frequency condition, there is harmonic coupling in grid-connected
inverter. The harmonic state-space (HSS) modeling method is an effective means to analyze …

The output impedance matrix of a grid-connected converter plays an important role in
analyzing system stability. Due to the dynamics of the DC-link control and the phase locked …

Stability analysis of power converters in ac networks is complex due to the nonlinear nature
of the conversion systems. Whereas interactions of converters in dc networks can be studied …